648945501048 has 48 divisors (see below), whose sum is σ = 1892757714120. Its totient is φ = 199675538496.

The previous prime is 648945501013. The next prime is 648945501097. The reversal of 648945501048 is 840105549846.

648945501048 is a `hidden beast` number, since 6 + 4 + 8 + 94 + 5 + 501 + 0 + 48 = 666.

It is a super-2 number, since 2×648945501048² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 648945500985 and 648945501003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346657986 + ... + 346659857.

Almost surely, 2^648945501048 is an apocalyptic number.

It is an amenable number.

648945501048 is an abundant number, since it is smaller than the sum of its proper divisors (1243812213072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648945501048 is a wasteful number, since it uses less digits than its factorization.

648945501048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693317868 (or 693317861 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 648945501048 in words is "six hundred forty-eight billion, nine hundred forty-five million, five hundred one thousand, forty-eight".